I found some good views of the Steel and Broadway bridges, from the Willamette Greenway Trail.

And in the next section, upstream of the Broadway Bridge, I found a spot where I had a good view of the Steel Bridge.  And of a great blue heron

And at this point, I had a problem.  The McCormick Pier Condos have had problems with homeless people on the trail.  They even tried to close the trail a while back, to keep them out.  The city made them reopen it, so they came up with another solution.  Now you're allowed to walk or run along the river, but you can't stop.  A polite security guard came by to tell me to move along.